diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/CSVImportFileServlet.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/CSVImportFileServlet.java
index 49844ac..b138767 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/CSVImportFileServlet.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/CSVImportFileServlet.java
@@ -7,6 +7,7 @@ import java.io.ByteArrayOutputStream;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.nio.charset.Charset;
+import java.util.Enumeration;
 
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServlet;
@@ -54,7 +55,14 @@ public class CSVImportFileServlet extends HttpServlet {
 
 		logger.info("CSVImportFileServlet");
 		long startTime = System.currentTimeMillis();
-
+		logger.debug("Request Headers: ");
+		Enumeration<String> headers=request.getHeaderNames();
+		while(headers.hasMoreElements()){
+			String hName=headers.nextElement();
+			logger.debug("Header: "+hName+" = "+request.getHeader(hName));
+		}
+		
+		
 		HttpSession session = request.getSession();
 
 		if (session == null) {